Asus, Acer ultrabooks pop up on Amazon, Newegg

Ultrabooks are ripe and ready for the picking. After doing a little digging on Amazon and Newegg, we've found listings for not just Acer's freshly announced Aspire S3, but also two of Asus' Zenbooks—all in stock.

The Aspire S3 is selling for $899.99 at Newegg. That's the same configuration Acer announced on Monday, with a 13.3" display, 1.6GHz Core i5 processor, 4GB of RAM, 20GB solid-state drive, 320GB mechanical hard drive, and six-hour battery.

The base, $1099.99 version of Asus' 13.3" Zenbook, the UX31E-DH52 is available at both Amazon and Newegg. While pricier than the Acer machine, the Zenbook has a faster, 1.7GHz processor, a 128GB solid-state drive, and a battery rated for over seven hours of run time. It's also a little lighter, at 2.86 lbs. (The Aspire S3 weighs 2.98 lbs.)

Meanwhile, an $1199.99 version of Asus' 11.6" Zenbook, the UX21-EDH71, is also stocked at both Amazon and Newegg. It's quite far removed from the cheapest configuration of that system, though—that would be the $999 UX21E-DH52, which I'm not seeing listed just yet. $999 wouldn't be too bad, but 1200 bucks is a little pricey for an 11.6" laptop, in my book.